Overview

This manual is intended for simulating applications on an RTL-based hardware platform. Applications developed in #(app dir) are converted into RISC-V binary files through the build process, and are then loaded into the main memory of the RTL platform at the start of simulation. The simulation automatically terminates when the application’s main function returns.
Note that this process requires a license for the mixed-language RTL simulator, which must be obtained separately.

Simulation Functionality

- Creating an RTL Simulation Directory

• Prerequisite: Synthesizing a Platform

• Command:

  cmd) cd #(platform dir)
  cmd) make sim_rtl

• Result:
  #(platform dir)/sim_rtl is created,
  which we refer to as #(sim dir).

• Note: #(sim dir) is automatically managed by the RVX tool.

- Cleaning All Simulation Results

cmd) cd #(sim dir)
cmd) make clean

- Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make compile_test

- Displaying the Compilation Log of the Platform RTL Code

cmd) cd #(sim dir)
cmd) make compile_check

- Simulating the RTL Platform Using an Application

Common

• Prerequisite: Developing an Application

• Build Mode:

  • The default value is debug for all simulation commands.

  • You can explicitly specify BUILD_MODE when invoking make.

  • Or, can be defined in #(sim dir)/rvx_each.mh.

  • Or, can be defined in #(platform dir)/user/sim/env/set_sim_env.mh.

• Note:

  • Build compiles only the parts that have changed.

Simulating the Platform with an Application

• Included Process:

  • Building an Application

  • Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make #(app name).sim

Simulating the Platform Including an Application Rebuild

• Included Process:

  • Cleaning Build Results

  • Building an Application

  • Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make #(app name).resim

Simulating the Platform from Scratch

• Included Process:

  • Cleaning All Simulation Results

  • Cleaning Build Results

  • Building an Application

  • Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make #(app name).all // make clean #(app name).resim

Simulating with RTL Waveform Recording

• Included Process:

  • Building an Application

  • Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make #(app name).debug

Simulating with Rebuild and Recording

• Included Process:

  • Cleaning Build Results

  • Building an Application

  • Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make #(app name).redebug

Simulating with RTL Waveform Recording from Boot

• Included Process:

  • Building an Application

  • Compiling the Platform RTL Code

cmd) cd #(sim dir)
cmd) make #(app name).debug_init

- Opening the Waveform Viewer for Debugging

cmd) cd #(sim dir)
cmd) make view

Auxiliary Functionality

- Displaying Applications List

cmd) cd #(sim dir)
cmd) make app_list

- Compiling the Platform RTL Code One by One

This command helps identify missing include files.

cmd) cd #(sim dir)
cmd) make compile_test_all

- Identifying RTL Compilation Failures

cmd) cd #(sim dir)
cmd) make compile_check

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